There are many reasons for nausea 6 days after cholecystectomy, mainly including physiological factors, adverse drug reactions, dietary irrationality and so on. 1. Physiological factors: it is a normal performance, because cholecystectomy requires injection of anesthetics, anesthesia components in the body are not fully metabolized out of the body, nausea may occur. There is no need for special treatment at present, and the symptoms can return to normal in about 5-7 days. 2. Adverse drug reactions: After cholecystectomy, long-term medication is needed to control the development of the disease, including antibiotics, glucocorticosteroids, painkillers, etc. If the medication is not reasonable, it will cause adverse reactions, including nausea, vomiting, loss of appetite, etc. The medication should be stopped as soon as possible. They should be stopped as soon as possible according to the doctor’s advice. 3. Unreasonable diet: After cholecystectomy, the diet should be light, soft and easy to digest, if the food is too greasy and bloated, it may cause nausea, vomiting and other symptoms. After surgery, it is recommended to give patients more rice porridge, rice paste, noodles, etc., which can effectively reduce gastrointestinal discomfort. Nausea 6 days after cholecystectomy, may also be due to cold or psychological factors, it is recommended to go to the hospital as soon as possible to check, analyze the cause, and then combined with the doctor’s recommendations for targeted treatment.